arm64: dts: lx2160a-rev2: avoid 32-bit pcie window system ram overlap

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A 3GB non-prefetchable PCIe bus window can overlap with inbound DMA
addresses for low system RAM, so DMA transactions may be routed to a BAR
on the same host bridge instead of memory.

Change the 32-bit non-prefetchable PCIe window back from 3GB to 1GB on all
controllers, avoiding that overlap while keeping the added 64-bit
prefetchable region.

This partially reverts commit 9ed3013970 ("arm64: dts: lx2160a-rev2:
extend 32-bit and add 64-bit pci regions").

Fixes: 9ed3013970 ("arm64: dts: lx2160a-rev2: extend 32-bit and add 64-bit pci regions")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Closes: https://lore.kernel.org/r/9e6326f6-dad1-4169-a63c-e62ee5b341f2@app.fastmail.com
Signed-off-by: Josua Mayer <josua@solid-run.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Frank Li <Frank.Li@nxp.com>

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This commit is contained in:

Josua Mayer 2026-06-10 13:45:23 +02:00 • committed by Frank Li

parent c10cfc9522

commit de8c602d5a

1 changed files with 6 additions and 6 deletions

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arch/arm64/boot/dts/freescale/fsl-lx2160a-rev2.dtsi

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